■ plural noun small shrimp-like planktonic crustaceans which are the principal food of baleen whales. [ Meganyctiphanes norvegica and other species, order Euphausiacea.]
Origin
early 20th cent.: from Norw. kril 'small fish fry'.
KRILL
Meaning of KRILL in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004